How to practice Visual Search

What each level changes

Easy uses 9, 16 and 25 items with a strong feature difference. It is useful for learning the response mechanics without forcing subtle comparison.

Standard uses 16, 25 and 36 directional triangles. Shape and color stay matched while orientation changes, so the player must inspect direction. Rotationally symmetric shapes are deliberately excluded.

Challenge uses 25, 36 and 49 items. Each distractor shares exactly one feature with the target—shape or color—but never both. This prevents a one-feature shortcut.

Present and absent trials

Three quarters of each block contain one exact target; one quarter contain none. On present trials, select the exact cell. On absent trials, use the explicit Absent response. Accuracy is reported separately for those two conditions so a player can see whether misses come from overlooking targets or from false alarms.

Read speed with set size

The result includes median correct reaction time and set-size-specific timing. When enough sizes are present, the page also shows the observed change in response time per additional item. This is simply a local session measurement; it is not a population percentile or clinical score.

Use assistance deliberately

Target Outline is a study aid that outlines the true target on present trials. Turning it on marks the whole run Assisted. Assisted runs remain in recent history but cannot replace Clean bests, keeping practice feedback honest.

Repeat a block exactly

Practice URLs carry a deterministic seed. Keeping the same seed reproduces the same source and concrete grid sequence. Fresh block creates a new seed. This is useful when you want to compare a strategy on identical material rather than guessing whether the puzzle itself became easier.

Useful practice routine

Start with Easy until target selection and Absent feel automatic. Move to Standard and protect accuracy before chasing reaction time. Use Challenge only when you can maintain exact feature matching on dense boards. If errors rise sharply at the largest set size, slow the scan and use a deliberate row-by-row pattern before trying to accelerate.

Build a scan pattern before you chase speed

A repeatable scan strategy is more useful than random eye movement. On square grids, try left-to-right rows, short vertical strips, or a clockwise ring pattern and stay with the same method for several blocks. The point is not to make one pattern universally “correct”; it is to reduce accidental re-checking of the same cells. When the target is absent, a systematic scan is especially valuable because there is no single pop-out event that tells you to stop.

After a miss, ask what actually failed. A target-present miss can come from skipping a region, confusing a one-feature lure with the complete target, or moving so quickly that orientation was not encoded. A false Absent response means the target was there but was not found. A false target selection means a distractor looked close enough to trigger a response. Those error types suggest different practice changes, so the page keeps present and absent accuracy separate.

How set size changes the task

Set size is the number of items in the field. DailyBrainArc uses three sizes per difficulty rather than mixing arbitrary board densities. Comparing the smallest and largest sizes within the same level gives a more useful picture than comparing a tiny Easy board with a dense Challenge board. The reported search slope is simply the observed change in median correct response time divided by the increase in item count; it is descriptive session feedback, not a psychological diagnosis.

If large boards are much slower but accuracy stays stable, you may be scanning carefully and consistently. If speed barely changes while errors rise, you may be terminating the search early. If Absent trials are disproportionately slow, that can be a natural consequence of having to inspect the whole field. The useful question is whether your chosen scan method stays reliable as density increases.

Why Standard uses directional triangles

Orientation search only works when different orientations actually look different. A square, circle or diamond rotated by 90 degrees can look identical, even if an internal data value says the rotation changed. Standard therefore uses a directional triangle for both target and distractors. Shape and color are held constant while every distractor has a visibly different orientation. The independent verifier checks that visible-equivalence safeguard rather than trusting the internal rotation code alone.

Why Challenge uses one-feature lures

Challenge is a conjunction task. Some distractors share the target shape but use another color; the rest share the target color but use another shape. No distractor is allowed to match both. This means a player cannot solve the field by looking only for “blue” or only for “diamonds.” You must confirm the complete feature combination before selecting a cell.

A practical method is to choose the rarer-looking feature first, then verify the second feature before clicking. If the target is a blue circle, for example, you might first identify all blue items and then check which of them is circular. On another board, shape-first may be faster. The game does not prescribe one permanent strategy; it gives a consistent field where you can compare methods.

When to use Absent

Absent should be a conclusion, not a shortcut. On an Easy board, a strongly different target may pop out quickly, but an absent trial still requires confidence that no complete match is present. On Standard, every item shares target shape and color, so orientation must be checked. On Challenge, many lures share one target feature, so a quick color-only scan is insufficient.

If you notice a habit of pressing Absent early, slow the final pass and deliberately check the region you tend to skip. If you almost never use Absent even when the target is missing, practice recognizing a completed scan as a valid stopping condition. Both behaviors are visible in the separate accuracy metrics.

Clean bests and study assistance

Target Outline is intentionally obvious assistance: on a target-present trial it marks the correct cell. It is useful for learning what a complete match looks like in dense conjunction fields, but once enabled the whole run is Assisted. The run still counts in local history, yet it cannot replace a Clean best. This prevents a study aid from silently becoming the strongest unassisted record.

Accessibility and input choices

Target cells are real buttons, so pointer and touch input use the same semantic controls. Absent has its own full-width button and can also be triggered with 0 or A while a trial is active. The mobile layout hides the bottom dock during an active block so the 7×7 grid remains the main interaction surface, then restores normal navigation after the round.

What the result does not mean

Visual Search is a browser practice game. It does not diagnose ADHD, measure IQ, provide a clinical attention score, establish a population percentile, or promise transfer to school, work, driving or medical outcomes.